Former Kazakh Soviet Socialist Republic, independence in 1991. Kazakhstan obtained Su-27 and MiG-29 from Russia as a form of payment for Russian debts, also for using by Russia the Baykonur Space Centre and for Tu-95MS returning to Russia (from Semipalatinsk air base). Kazakhstan is a member of Collective Security Treaty Organization with Russia, Belarus, Armenia, Kyrgyzstan and Tajikistan.

unknown number (probably 14) in one regiment
10 are in service in 2010
Su-30SM since April 2015

Deliveries

about 1996: unknown number of Su-27 + Su-27UB.
Informations are unclear, aircrafts may be up to 20.
April 2015: four Su-30SM (same version as Russian Air Force)
December 2016: two Su-30SM (same version as Russian Air Force)
December 2017: two Su-30SM (same version as Russian Air Force)

In 2009 Belarusian РУВП 558-ы авіяцыйны рамонтны завод (558th Air Repair Plant) in Баранавічы (Baranovichi) won a tender for upgrade ten of the kazakh Sukhois. December 2009: first two modernised aircraft are Su-27UB #50 and Su-27 #05 with satellite navigation systems and expanded weaponry, delivered to Талдықорған (Taldykorgan).

Upgrade was completed in June 2010. Su-27 were modernized to Su-27M2 standard (version of not-realised Belarusian Su-27M1 standard) and Su-27UB to Su-27UBM2 (extended Belarusian Su-27UBM1 standard realised between 2004 and 2005).